QUESTION 21 Pilot testing of the new switching infrastructure finds that when the root port is lost, STP immediately replaces the root port with an alternative root port. Which spanning-tree technology is used to accomplish backup root port selection?

QUESTION 1An EtherChannel bundle has been established between a Cisco switch and a corporate web server. The network administrator noticed that only one of the EtherChannel links is being utilized to reach the web server. What should be done on the Cisco switch to allow for better EtherChannel utilization to the corporate web server?

A. Enable Cisco Express Forwarding to allow for more effective traffic sharing over the EtherChannel bundle.B. Adjust the EtherChannel load-balancing method based on destination IP addresses.C. Disable spanning tree on all interfaces that are participating in the EtherChannel bundle.D. Use link-state tracking to allow for improved load balancing of traffic upon link failure to the server.E. Adjust the EtherChannel load-balancing method based on source IP addresses.

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QUESTION 351 Refer to the exhibit. A network engineer deployed an older switch with the same spanning-tree priority as the existing root, which caused a network outage. In which two locations should the Spanning Tree protocol root guard feature be implemented? (Choose two.)

A. On the designated root switch downlinks to the access layer. B. On all of non-root switch facing ports of the access layer C. On the access layers root facing ports D. On Layer 3 boundaries in the distribution layer E. Globally on all network switches.

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QUESTION 276There are 2 SW and 2 PCs. There is a trunk with VLAN 1 and 5 allowed. Question is if you do “switchport trunk allowed vlan 2,3,4” on SW2, what happens. Ports towards PCs are in mode access VLAN 5

A. The connection is lost between PCs, because you will remove VLANs 1 and 5 from trunk with this command. You should use “switchport trunk allowed vlan” to add additional VLANs into trunk

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